NPS 20 - NPS 26

Dimensions & Weights of Pipes ASTM A53
20-26 Other Dimensions:
1/8-1½ | 2-3½ | 4-6|8-12 | 14-18
NPS
Specified
Outside
Diameter
in
(mm)
Specified
Wall
Thickness
in
(mm)
Nominal Weight
(Mass)
per Unit Length
Plain End
lb/ft
(kg/m)
20
20.000
(508)
0.250
(6.35)
52.78
(78.55)
0.281
(7.14)
59.23
(88.19)
0.312
(7.92)
65.66
(97.67)
0.344
(8.74)
72.28
(107.60)
0.375
(9.52)
78.67
(117.02)
0.406
(10.31)
84.04
(126.53)
0.438
(11.13)
91.59
(136.37)
0.469
(11.91)
97.92
(145.70)
0.500
(12.70)
104.23
(155.12)
0.594
(15.09)
123.23
(183.42)
0.812
(20.62)
166.56
(247.83)
1.031
(26.19)
209.06
(311.17)
1.281
(32.54)
256.34
(381.53)
1.500
(38.10)
296.65
(441.49)
1.750
(44.45)
341.41
(508.11)
1.969
(50.01)
379.53
(564.81)
24
24.000
(610)
0.250
(6.35)
63.47
(94.46)
0.281
(7.14)
71.25
(106.08)
0.312
(7.92)
79.01<br. (117.51)
0.344
(8.74)
86.99
(129.50)
0.375
(9.52)
94.71
(140.88)
0.406
(10.31)
102.40
(152.37)
0.438
(11.13)
110.32
(164.26)
0.469
(11.91)
117.98
(175.54)
0.500
(12.70)
125.61
(186.94)
0.562
(14.27)
140.81
(209.50)
0.688
(17.48)
171.45
(255.24)
0.938
(23.83)
231.25
(344.23)
0.969
(24.61)
238.57
(355.02)
1.219
(30.96)
296.86
(441.78)
1.531
(38.89)
367.74
(547.33)
1.812
(46.02)
429.79
(639.58)
2.062
(52.37)
483.57
(719.63)
2.344
(59.54)
542.64
(807.63)
26
26.000
(660)
0.250
(6.35)
68.82
(102.42)
0.281
(7.14)
77.26
(115.02)
0.312
(7.92)
85.68
(127.43)
0.344
(8.74)
94.35
(140.45)
0.375
(9.52)
102.72
(152.80)
0.406
(10.31)
111.08
(165.28)
0.438
(11.13)
119.69
(178.20)
0.469
(11.91)
128.00
(190.46)
0.500
(12.70)
136.30
(202.85)
0.562
(14.27)
152.83
(227.37)
NPS
Specified
Outside
Diameterb
in
(mm)
Specified
Wall
Thickness
in
(mm)
Nominal Weight
(Mass)
per Unit Length
Plain End
lb/ft
(kg/m)
NPS Weight
Class
Schedule
No.
Test Pressure
Apsi
(kPa)
Grade A
Grade B
20
...
10
450
(3100)
520
(3600)
...
...
510
(3500)
590
(4100)
...
...
560
(3900)
660
(4500)
...
...
620
(4300)
720
(5000)
STD
20
680
(4700)
790
(5400)
...
...
730
(5000)
850
(5900)
...
...
790
(5400)
920
(6300)
...
...
850
(5900)
950
(6500)
XS
30
900
(6200)
1050
(7200)
...
40
1170
(8100)
1250
(8600)
...
60
1460
(10100)
1710
(11800)
...
80
1860
(12800)
2170
(15000)
...
100
2310
(15900)
2690
(18500)
...
120
2700
(18600)
2800
(19300)
...
140
2800
(19300)
2800
(19300)
...
160
2800
(19300)
2800
(19300)
24
...
10
380
(2600)
440<br. (3000)
...
...
420
(2900)
490
(3400)
...
...
470
(3200)
550
(3800)
...
...
520
(3600)
600
(4100)
STD
20
560
(3900)
660
(4500)
...
...
610
(4200)
710
(4900)
...
...
660
(4500)
770
(5300)
...
...
700
(4800)
820
(5700)
XS
...
750
(5200)
880
(6100)
...
30
840
(5800)
980
(6800)
...
40
1030
(7100)
1200
(8300)
...
...
1410
(9700)
1640
(11300)
...
60
1450
(10000)
1700
(11700)
...
80
1830
(12600)
2130
(14700)
...
100
2300
(15900)
2680
(18500)
...
120
2720
(18800)
2800
(19300)
...
140
2800
(19300)
2800
(19300)
...
160
2800
(19300)
2800
(19300)
26
...
...
350
(2400)
400
(2800)
...
...
390
(2700)
450
(3100)
...
10
430
(3000)
500
(3400
...
...
480
(3300)
560
(3900)
STD
...
520
(3600)
610
(4200)
...
...
560
(3900)
660
(4500)
...
...
610
(4200)
710
(4900)
...
...
650
(4500)
760
(5200)
XS
20
690
(4800)
810
(5600)
...
...
780
(5400)
910
(6300)
Grade A
Grade B
NPS
Weight
Class
Schedule
No.
Test Pressure
Apsi
(kPa)
20-26
Other Dimensions:
1/8-1½ | 2-3½ | 4-6|8-12 | 14-18

Notes:

1. For specified wall thicknesses greater than the heaviest specified wall thickness listed in this table for the applicable specified outside diameter, the test pressure shall be the highest value listed for the applicable specified outside diameter and grade.

2. For pipe smaller than NPS 2 with a specified wall thickness less than the lightest specified wall thickness listed in this table for the applicable specified outside diameter and grade.

3. For all sizes of Grade A and B pipe smaller than NPS 2, the test pressures were assigned arbitrarily. Test pressures for intermediate specified outside diameters need not exceed those given in this table for the next larger listed size.